Hey guys car was running warm(2003 Ann), ended up putting a gallon of dex in it. parked it on Saturday. Seen a little spot after I drove it Monday, came out this morning and there is a big spot to the back side of the passenger tire. Again it has sat for a couple days and then this spot popped up. What is under the box that you fill with coolant? Do these boxes crack or are the hoses there?


Thanks

 

Welcome to the forum.

While I am not all that familiar with the C5 plumbing, you may have to remove the coolant reservoir to determine where the leak is occurring.

 

This just happened to me a couple months ago. Under the
Reservoir tank is a "T" coupling and both ends cracked inside the coolant hoses causing a slow leak. Got a new tank ($100 or less) and replaced it in about 10 minutes.

 

Discovered the plastic around the top hose nipple broke off and was coming from there. New box on it's way.


Thanks guy's

 

Welcome to the forum. And thanks for the solution.